Packets DownRange
Internet Service provider topics, Network operations, and other topics. Some topics include Mikrotik, Cisco, Arista and other configurations.
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
Our friend David over at Penny Tone has an article out on call Quality. https://www.linkedin.com/pulse/stop-suffering-from-poor-phone-call-audio-fix-david-attias/
Testing a fiber cross-connect at a data center. #packetsdownrange
Over the years I have been able to narrow the most common reasons a service provider goes down or has an outage. This is, by no means, an extensive list. Let’s jump in. Layer1 outages Physical layer outages are the easiest and where you should always start. If you have had any kind of formal … Read more
This content is for Patreon subscribers of the j2 blog. Please consider becoming a Patreon subscriber for as little as $1 a month. This helps to provide higher quality content, more podcasts, and other goodies on this blog.To view this content, you must be a member of Justin’s Patreon Unlock with PatreonAlready a qualifying Patreon … Read more
Tomas Kirnak has a great presentation on load balancing and Mikrotik. The PDF is available for direct download here: https://mum.mikrotik.com/presentations/US12/tomas.pdf
If you are looking for a way to bandwidth test from a PC through to a Mikrotik, here is your solution. https://mt.lv/btest It supports RouterOS version 6.43 and newer. Advice from Mikrotik:Please remember that Bandwidth Test uses a lot of resources. If you want to test real throughput of a router, you should run Bandwidth … Read more
DNS Shotgun is capable of simulating real client behaviour by replaying captured traffic over selected protocol(s). The timing of original queries as well as their content is kept intact. https://dns-shotgun.readthedocs.io/en/stable/key-concepts/
https://static1.squarespace.com/static/5e013aba1c79407e08cf53bc/t/60610a0a5517c019d36a2083/1616972299607/Foundations+-+Interconnection+Quarterly+%284Q2020%29+.pdf From Christian Koch from Foundations I am excited to reveal that my quarterly interconnection update hastransformed into the Interconnection Quarterly, a hand-tailored,independent briefing on the interconnection industry. Right now, my plansare to publish the Interconnection Quarterly shortly after the last publiccompanies report earnings, as I’ve done with the previous updates. Thismay change in the … Read more
Came across this gem in a newsletter. https://github.com/kuchin/awesome-cto A curated and opinionated list of resources for Chief Technology Officers and VP R&D, with the emphasis on startups and hyper-growth companies Contents General Hiring Management Handbooks Development process Architecture Technologies Startups Related stuff Product Marketing More links
The following is an estimate of loss using LTE frequencies and common building materials. -Fiberglass -2dB -Drywall -4dB-6″ Concrete 12-20 dB-Brick -10-20dB
Recently I ran into an issue where a librenms install was taking up a crazy amount of disk space. This was tracked down to the syslog.ibd file . Even thought I had set my options to be less than 10 days per this link https://docs.librenms.org/Support/Cleanup-options/ I still was having a huge file. Here is what … Read more